H1B petition approved but employer not initiating stamping .

I have my H1B petition approved by my employer in september,2012 but they are not initiating stamping procedure and not giving me dates for PA . Can this petition be used if I switch to another employer ?

yes if you have approved petition you can very well use it of transfer.

Thanks

Vivek

I do not have the hard copy of petition with me , all I have is receipt number and approval mail from internal Visa unit of organization .